PL/SQL (Procedural Language for SQL) is Oracle's proprietary extension to standard SQL. It combines the data manipulation power of SQL with the procedural capabilities of a programming language. PL/SQL allows developers to write complex database-centric applications by incorporating variables, conditions, loops, error handling, and modular programming constructs like procedures and functions. This language is tightly integrated with Oracle databases, enabling efficient data processing and transaction management.
In this tutorial, I am giving an Oracle FOR LOOP SELECT statement example. You can use SELECT statement inside FOR LOOP in Oracle to loop through SELECT results using PL FOR LOOP IN SELECT Syntax FOR cursor_variable IN (select_statement) LOOP…
In Oracle PL/SQL, IF condition is used to perform a logical check on certain values. If the condition is TRUE or FALSE then executes the statements followed by that condition. In this blog post, I am giving an Oracle IF…
In Oracle PL/SQL, WHILE LOOP statement executes the code written between WHILE LOOP and END LOOP until the condition is true. Below I am giving some examples for Oracle WHILE LOOP statement. Syntax WHILE logical_condition LOOP -- some PL/SQL code END…
In Oracle PL/SQL, FOR LOOP with REVERSE clause is used to repeat loop iteration in reverse order. The following are the syntax and examples for REVERSE FOR LOOP. Syntax FOR n IN REVERSE start_number .. end_number LOOP -- statement to execute…
Below is an example of PL/SQL program to compile all invalid package specifications and all invalid package bodies for the current user (SCHEMA) in Oracle. Also, if any of the invalid packages are not successfully compiled then it will print…
In this tutorial, you will learn how to delete the records from a table in Oracle using PL In Oracle PL/SQL, we can delete the records using DELETE DML Statement and be using TRUNCATE DDL command. I am giving below…
In this tutorial, you will learn how to print employee details using PL/SQL program. PL/SQL Program to Print Employee Details In the following example, it will print the employee details for the employee number 7839, set in the declare section…
In Oracle PL/SQL, UTL_FILE.FREMOVE procedure is used to delete a file from the disk. This tutorial explains how to delete a file in Oracle PL/SQL using UTL_FILE.FREMOVE procedure with syntax and example. Syntax UTL_FILE.FREMOVE ( location IN VARCHAR2, filename IN…
In Oracle PL/SQL, UTL_FILE.FCOPY procedure is used to copy a file. This article explains how to copy a file in PL/SQL using UTL_FILE.FCOPY procedure with syntax and examples. Syntax UTL_FILE.FCOPY ( src_location IN VARCHAR2, src_filename IN VARCHAR2, dest_location IN VARCHAR2, dest_filename…
You can raise an error in PL/SQL using user-defined exception. Steps to Raise An Exception in PL/SQL Declare user-defined exception in the declare section of PL/SQL program unit. Raise it between the program upon some condition. Handle it in the…
In Oracle PL/SQL, the For Loop offers one of the simplest ways to work with cursors. The key benefit when using a cursor in this format is that Oracle automatically manages the lifecycle of the cursor—that is, opening, fetching records,…
The utl_file.fopen function in Oracle is an essential tool for file handling on the server. It allows Oracle database code, such as PL/SQL procedures or functions, to open and access files stored in specific, predefined directories on the database server.…
If you are working with Oracle, you will often need to execute PL/SQL blocks to test logic, fetch data, or print results. Running a PL/SQL block is easy, and you can do it in different ways depending on which tool…
In PL/SQL, you can use the raise_application_error procedure to throw custom error messages when a specific condition is not met in your code. This is especially helpful when you want to enforce business rules or validation checks within your stored…
In Oracle, you can execute functions that accept parameters in several ways. Functions are commonly used to return a single value based on the input you provide. Below are two common approaches to executing an Oracle function with parameters. 1.…
In Oracle PL/SQL, a stored procedure can have different types of parameters: IN, OUT, and IN OUT. The IN parameter is used to pass a value into the procedure, while the OUT parameter allows the procedure to return a value…
To execute a procedure that is defined within a package in Oracle, you simply reference the procedure using the package name followed by the procedure name. This makes it easy to organize and call your procedures, especially when your application…
When working with Oracle PL/SQL, it is important to understand the correct way to define procedures within packages. In Oracle, every procedure or function that is part of a package must first be declared in the package specification before you…